Hi,
I have a problem with sniffing MPLS unicast frames (ethtype=0x8847). The
problem occurs with ixgbe-2.0.75.7 and later drivers, including 3.0.12 (the
latest?).
Setup: Debian squeeze (2.6.32-5-amd64), Intel X520-SR2 (82599EB dual port).
Drivers are compiled without LRO support (as recommended for bridging).
The command is "tcpdump -i eth3 mpls".
Works fine (MPLS frames are shown) with ixgbe-2.0.44.14, 2.0.62.4 and 2.0.72.4.
With later drivers eth3 enters promisc mode and I can see non-MPLS frames
(including some non-IP ones), but can not sniff MPLS.
What could be a cause?
Regards,
Alexey.
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